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Zolol [24]
3 years ago
8

I need help for this question 3 so can anyone help me please

Mathematics
1 answer:
vladimir1956 [14]3 years ago
8 0
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Suppose xy=−2 and dy/dt=−4. Find dx/dt when x=−1.
Nikitich [7]

Answer:

  -2

Step-by-step explanation:

Dividing the given equation by x, we find y to be ...

  y = -2/x

Then ...

  dy/dx = 2/x^2

and ...

  dy/dt = (2/x^2)dx/dt

  dx/dt = (x^2/2)dy/dt

When dy/dt = -4 and x=-1, this is ...

  dx/dt = (-1)^2/2(-4) = (1/2)(-4)

  dx/dt = -2

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Sergio039 [100]

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4 years ago
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3 years ago
Will mark brainliest and give thirteen points if you give explanation
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Solve for p -10p = -40 ???
scoundrel [369]

Answer:

p = 40/9

Step-by-step explanation:

p - 10p = -40

-9p = -40

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